Home / 151,921.25-209,655.56-83,942.60

Finding the Fourth Proportional to 151,921.25, 209,655.56 and 83,942.60

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Solution

The fourth proportional to 151,921.25, 209,655.56 and 83,942.60 is: 115,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,921.25 : 209,655.56 = 83,942.60 : x
  2. Step 2: Convert to fraction form
    151,921.25/209,655.56 = 83,942.60/x
  3. Step 3: Cross multiply
    151,921.25x = 209,655.56 × 83,942.60
  4. Step 4: Simplify right side
    151,921.25x = 17,599,032,915.28
  5. Step 5: Solve for x
    x = 17,599,032,915.28/151,921.25
  6. Step 6: Final answer
    x = 115,843.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.